Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs....more

A chest X-ray is an imaging test that uses X-rays to look at the structures and organs in your chest. It can help your health care provider see how well your lungs and heart are working. Certain heart problems can cause changes in your lungs. Certain diseases can cause changes in the structure of the heart or lungs....more

CT scan is a type of imaging test. It uses X-rays and computer technology to make images or slices of the body. A CT scan can make detailed pictures of any part of the body, including the bones, muscles, fat, organs, and blood vessels. They are more detailed than regular X-rays....more

Some medical problems can make it hard for you to breathe. In these cases, you might benefit from bilevel positive airway pressure. It is commonly known as “BiPap” or “BPap.” It is a type of ventilator—a device that helps with breathing....more